310 Keysight N9010A EXA Service Guide
L.O. Synthesizer/Reference Troubleshooting
A14 L.O. Synthesizer Troubleshooting
Verifying the 1st L.O. Output Power:
— Turn on the analyzer and wait for the instrument to complete the boot up
process.
— If the analyzer has Option 503, press FREQ, 600 MHz, Span, Zero Span.
If the analyzer does not have Option 503 press FREQ, 4.2 GHz, SPAN, Zero
Span.
—Refer to Figure 8-1, disconnect A14W4 cable at A14J740.
— Connect A14J740 1st LO output to the RF input of the functioning spectrum
analyzer using a cable that will function up to 10 GHz.
—Press Frequency, 4.5225 GHz (if the analyzer does not have Option 503) or
Frequency 5.7225 GHz (if the analyzer has Option 503), Span, 5 MHz, Peak
Search on the functioning spectrum analyzer. If the functioning spectrum
analyzer has a preselector peak or preselector centering function, perform
that operation to guarantee the preselector is optimized for the
measurement.
— The analyzer marker should read 4.5225 GHz or 5.7225 GHz at +16.55 dBm
± 3 dB as shown in Figure 8-5.
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